998-00-5

Usage

Uses

Used in Plastics Industry:
TETRAISOBUTYLDIALUMINOXANE is used as a co-catalyst for increasing the activity of metallocene catalysts in the production of polyethylene and other olefin polymerization reactions. This enhancement in catalyst activity leads to the creation of high-quality plastics with improved properties.
Used in Chemical Catalysts:
In the field of chemical catalysis, TETRAISOBUTYLDIALUMINOXANE is employed to boost the efficiency of various chemical reactions, particularly those involving the polymerization of olefins. Its use as a co-catalyst allows for better control over reaction conditions and improved product yields.
Used in Research and Development:
TETRAISOBUTYLDIALUMINOXANE is utilized in research and development settings to study and develop new catalyst systems and polymerization processes. Its unique properties make it a valuable tool for advancing the understanding of organoaluminum compounds and their applications in material science.
Used in Environmental and Health Regulation:
Due to its potential environmental and health hazards, TETRAISOBUTYLDIALUMINOXANE is subject to strict regulations in its production and handling. This ensures that its use is controlled and minimized to reduce the risk of adverse effects on the environment and human health.

InChI:InChI=1/4C4H9.2Al.O/c4*1-4(2)3;;;/h4*4H,1H2,2-3H3;;;/rC16H36Al2O/c1-13(2)9-17(10-14(3)4)19-18(11-15(5)6)12-16(7)8/h13-16H,9-12H2,1-8H3

Upstream product

• 13477-89-9 neodymium(III) chloride hexahydrate 
• 100-99-2 triisobutylaluminum 
• 10025-90-8 praseodymium(III) chloride hexahydrate 
• 7732-18-5 water 
• 13798-24-8 terbium(III) chloride hexahydrate 
• 19423-76-8 cerium(III) chloride hexahydrate 
• 126-73-8 phosphoric acid tributyl ester 

Downstream Products

• 113107-21-4 ((CH₃)2CHCH₂)2AlOAl(CH₂CH(CH₃)2){OSi(C₆H₅)2(OAl(CH₂CH(CH₃)2))2}3CH₂CH(CH₃)2 

Relevant academic research and scientific papers

1H NMR study of the catalytic system (rac-Me2Si(2-Me, 4-PhInd)2ZrCl2- polymethylalumoxane)-triisobutylaluminum

The products of the reactions of polymethylalumoxane (MAO) with triisobutylaluminum (TIBA), rac-Me2Si(2-Me,4-PhInd) 2ZrCl2 (1) with MAO (1 + MAO), and (1 + MAO) + TIBA were studied by 1H NMR at different molar ratios of the components. When the ratio AlTIBA/AlMAO is ～6, the reaction between MAO and TIBA involves the replacement of the methyl group of MAO by isobutyl groups and the formation of isobutylmethylalumoxane or mixed isobutylmethylalumoxane structures. When the TIBA content in the system increases to 30 mol.%, these structures are rearranged to form products with a low degree of association. With the equimolar ratio of the reactants, the main reaction products are tetraisobutylalumoxane and polyisobutylalumoxane. The 1 + MAO system with the molar ratio AlMAO/Zr = 50 affords a MAO-bonded monomethyl monochloride derivative [L2ZrCl-μ-Me]δ+[MAO] δ-. An increase in this ratio to 150 produces intermediate binuclear complexes [L2ZrCl-μ-Me-MeZrL2] +[MAO]- and [Me2Al-(μ-Me) 2-ZrL2]+[MAO]-. The addition of TIBA induces the replacement of the ZrMe groups by isobutyl groups at the first step of the interaction and formation of nonidentified reaction products at the subsequent steps.

A new approach to the preparation of lanthanide catalysts for the synthesis of 2-propyl-3-ethylquinoline based on the reactions of LnCl3· 6H2O crystalline hydrates with triisobutylaluminum

A new approach to the preparation of lanthanide catalysts for the synthesis of nitrogen heterocycles (exemplified by 2-propyl-3-ethylquinoline) was developed based on the reactions of LnCl3·6H2O crystalline hydrates with alkylaluminums. It was found that the interaction of LnCl3·6H2O (Ln = Ce, Pr, Tb, and Eu) with iso-Bu3Al in aromatic solvents (20°C) resulted in the formation of soluble (isobutane and the alumoxane (iso-Bu2Al)2O) and insoluble products (with the empirical formula LnCl3·xH 2O·y(iso-Bu2Al)2O (x = 0.4-0.7; y = 0.04-0.07)). The physiochemical properties of LnCl3·xH 2O·y(iso-Bu2Al)2O were studied, and these compounds were found to be highly efficient catalysts for the reaction of aniline condensation with butyraldehyde to form 2-propyl-3-ethylquinoline. MAIK Nauka/Interperiodica , 2006.

Dehydration of LnCl3·6H2O (Ln=Tb, Nd, Dy) in the reaction with i-Bu3Al, Et3Al, Et2AlCl, EtAlCl2 and formation of the complexes LnCl3·3(BuO)3PO

The dehydration of toluene insoluble salts TbCl3·6H2O (1), DyCl3·6H2O (2) and NdCl3·6H2O (3) in their reaction with organoaluminum compounds (RnAlX3-n): i-Bu3Al, Et3Al, Et2AlCl, EtAlCl2 and the influence of (BuO)3PO (TBP) on the process were studied. In the reaction of RnAlX3-n with the water of crystallization of salts 1-3, aluminoxanes and the following gases are formed: i-BuH for i-Bu3Al, EtH for Et3Al, EtH and HCl for Et2AlCl and EtAlCl2 as a result of the attack on the Al-C or Al-Cl bond independent of the presence of TBP. In the absence of TBP the salts 1-3 are dehydrated by RnAlX3-n to give insoluble products LnCl3·0.5H2O·0.5(R2Al) 2O, where R is alkyl for i-Bu3Al and Et3Al, or R is alkyl and Cl for Et2AlCl. The reaction of RnAlX3-n with 1-3 in the mixture of toluene-TBP at the ratio TBP/Ln≥12:1 results in the complete removal of water from LnCl3·6H2O and leads to the formation of homogeneous solutions, containing aluminoxanes and LnCl3·3TBP complexes. Homogeneous solutions, obtained after interaction in the system NdCl3·6H2O+TBP+PhMe+R3Al were then activated with either i-Bu3Al or (i-Bu2Al)2O and used as catalysts for polymerization of butadiene. All the catalysts were highly active for polymerization of butadiene, and produced a low-molecular polybutadiene.